The Intel RAID Controller RT3WB080 is an intelligent RAID solution that uses RAID-On-Chip (ROC) technology delivering cost-effective, state-of-the-art performance and data protection for high capacity SATA drive based systems. The RT3WB080 includes LSI's SAS2108 6 Gb/s ROC silicon, a native PCI Express 2.0 architecture and other powerful features such as RAID 6 and advanced RAID management. Compatible with SAS expanders with support for up to 16 physical devices.